gpt55_x402_payment_failure_doctor
Diagnose why an x402 payment did not convert from quote to settled response: missing X-PAYMENT header, payTo/network/amount mismatch, wallet spend-cap block, verify failure, settle failure, or post-payment response delivery issue. This deterministic endpoint can inspect a live quote without payin...
This record as markdown: /tools/xyz-558686-gpt55-token-gateway/gpt55-x402-payment-failure-doctor.md
What gpt55_x402_payment_failure_doctor does on GPT 5 5 x402 Low Cost Agent Tools
AI agents call gpt55_x402_payment_failure_doctor to retrieve information from GPT 5 5 x402 Low Cost Agent Tools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
url | string | — | |
body | object | — | |
method | string | — | |
status | integer | — | |
endpoint | string | — | |
resource | string | — | |
timeout_ms | integer | — | |
errorMessage | string | — | |
settleStatus | integer | — | |
verifyStatus | integer | — | |
error_message | string | — | |
expectedPayTo | string | — |
Parameters from the server's own tool schema.
Why gpt55_x402_payment_failure_doctor is rated Low
Queries payment-related data with financial context but executes no transactions or state changes.
From the tool's definition Diagnose payment failure, inspect live quote without paying, deterministic endpoint
Risk signalsAccepts URL/endpoint input (url) · Accepts raw HTML/template content (body) · High parameter count (39 properties)
Attacks that exploit this kind of access
The rule that runs gpt55_x402_payment_failure_doctor safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GPT 5 5 x402 Low Cost Agent Tools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gpt55_x402_payment_failure_doctor, this is the rule to start with:
gpt55_x402_payment_failure_doctor is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect GPT 5 5 x402 Low Cost Agent Tools, apply this rule, and every gpt55_x402_payment_failure_doctor call is checked against it from then on.
Questions about gpt55_x402_payment_failure_doctor
Diagnose why an x402 payment did not convert from quote to settled response: missing X-PAYMENT header, payTo/network/amount mismatch, wallet spend-cap block, verify failure, settle failure, or post-payment response delivery issue. This deterministic endpoint can inspect a live quote without paying the target endpoint and never sends a payment header to the target service. Pay $0.006 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json. It is categorised as a Read tool in the GPT 5 5 x402 Low Cost Agent Tools MCP Server, which means it retrieves data without modifying state.
gpt55_x402_payment_failure_doctor accepts 12 parameters: url, body, method, status, endpoint, resource, timeout_ms, errorMessage, settleStatus, verifyStatus, error_message, expectedPayTo. The full parameter table on this page comes from the server's own tool schema.
Register the GPT 5 5 x402 Low Cost Agent Tools MCP server in PolicyLayer and add a rule for gpt55_x402_payment_failure_doctor: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches GPT 5 5 x402 Low Cost Agent Tools. Nothing to install.
gpt55_x402_payment_failure_doctor is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the gpt55_x402_payment_failure_doctor rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for gpt55_x402_payment_failure_doctor. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
gpt55_x402_payment_failure_doctor is provided by the GPT 5 5 x402 Low Cost Agent Tools MCP server (https://gpt55.558686.xyz/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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